Set of key buttons for a handset



FIG. 1 is a front view of a set of key buttons for a handset showing ournew design in a broken line environment of a handset; and,

FIG. 2 is a perspective front view thereof.

The broken line showing of the remainder of the handset in FIGS. 1 and 2is for environmental purposes only and forms no part of the claimeddesign.

The ornamental design for a set of key buttons for a handset, as shownand described.